A Queens investor duped his clients out of nearly $5 million, and used some of the dough to cryogenically freeze his dead spouse, authorities said Friday.

Fugitive fraudster Whileon Chay, who bilked 19 victims out of the money in a Bernie-Madoff-style investment scheme, was apparently so upset by the death of his 52-year-old spouse that he turned to the sci-fi measure, officials said.

Chay blew $150,000 of the stolen funds on his wife’s deep freeze, with the idea being that scientists might be able to revive her one day.

It’s unclear where Chay’s wife — who was the treasurer of his firm 4X Solutions — is currently on ice.

The feds said Chay bolted for Lima, Peru, after learning that his Ponzi scheme was under law-enforcement scrutiny in 2011 and hasn’t been seen since.

He was hit with a US Commodity Futures Trading Commission civil suit last year and failed to show up at court.

Chay has since been indicted on criminal-fraud charges, according to papers filed in Manhattan federal court on Friday. Prosecutors revealed his 2009 cryogenics spending in the documents.

The move now means he’s a criminal fugitive whom authorities can go after. The United States has an extradition treaty with Peru.

Chay’s sister, who lives in Queens, told The Post that her brother vanished without a trace and she hasn’t heard from him in years.

She said his wife died “a long time ago” and that she had no idea about the cryogenic scheme.

Chay had touted his supposed expertise in the foreign-exchange, gold and commodities markets to reel in clients — then promised sky-high 36 percent returns and waved fabricated earnings reports to get them to invest more and more, authorities said.

He stopped at nothing to pick the pockets of his victims, boasting that his company hadn’t suffered a loss for 14 consecutive years.

Unfazed by the recession of 2008, the huckster told investors that they could safely invest with him “when most have lost and lost dearly,” according to court papers.

Chay also used investor money to pay off other clients when they demanded returns, court papers state.

The Queens crook managed to convince 19 investors to sign over fat checks to him between 2007 and 2011, according to court papers.

But Chay ended up keeping most of their cash for his personal indulgences — including fancy cars and clothes as well as his wife’s frozen remains — and lost the rest on bad investments, court papers state.